Evaporator assembly and refrigerator

Abstract

The application provides an evaporator assembly and a refrigerator. The evaporator assembly comprises a header, a heat exchange core and a heater. The heat exchange core is formed with a plurality of first channels and a plurality of second channels extending along a first direction. The plurality of first channels and the plurality of second channels are arranged in sequence and spaced apart along a second direction. Both ends of each first channel are communicated with the interior of the header for circulation of refrigerant. At least one second channel is arranged in the header and the end thereof extends out of the header. The heater comprises a plurality of heating wires. At least one heating wire is arranged in each second channel. The plurality of second channels are arranged in the plurality of first channels. The second channel is arranged in the header. The heating wire arranged in the second channel enables the heater to rapidly heat the header and the heat exchange core, thereby realizing efficient defrosting of the evaporator.

Description

Technical Field

[0001] This application belongs to the field of refrigerator technology, and particularly relates to an evaporator assembly and a refrigerator. Background Technology

[0002] Frost-free refrigerators are gradually replacing direct-cooling refrigerators due to their advantages of being frost-free and having uniform temperature. During the cooling process, the evaporator continuously exchanges heat with the air inside the refrigerator, gradually forming a frost layer on its surface. When the frost layer is thick, it increases the thermal resistance between the evaporator and the air inside the freezer compartment, hindering heat exchange and thus affecting the cooling effect.

[0003] In existing technology, a heater is installed below the evaporator to generate heat radiation to melt the frost layer on the evaporator surface. However, because the radiant heat is not evenly distributed in space, it leads to uneven defrosting of the evaporator and low defrosting efficiency. Utility Model Content

[0004] This application provides an evaporator assembly and a refrigerator, which can solve the technical problems of uneven defrosting and low efficiency of the refrigerator evaporator.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] An evaporator assembly includes:

[0007] manifold;

[0008] The heat exchange core has a plurality of first channels and a plurality of second channels extending along a first direction, and the plurality of first channels and the plurality of second channels are arranged sequentially at intervals along a second direction; both ends of each first channel are connected to the interior of the manifold for refrigerant flow; at least one second channel passes through the manifold and its end extends out of the manifold.

[0009] The heater includes multiple heating wires, with at least one heating wire disposed in each of the second channels.

[0010] In some embodiments, a second channel is provided between every two adjacent first channels.

[0011] In some embodiments, along the second direction, a plurality of perforations are sequentially formed on the manifold, the perforations traverse the manifold, each second channel passes through the corresponding perforation, and the end of the second channel extends out of the perforation.

[0012] In some embodiments, along the second direction, a plurality of openings are sequentially formed on the circumferential sidewall of the manifold, and the first channel communicates with the interior of the manifold through the openings.

[0013] In some embodiments, the manifold includes a first sub-pipe and a second sub-pipe, with each end of the first channel connected to the first sub-pipe and the second sub-pipe, respectively.

[0014] One end of the first sub-tube is closed, and the other end has an inlet for introducing refrigerant into the first sub-tube; one end of the second sub-tube is closed, and the other end has an outlet for discharging refrigerant from the second sub-tube.

[0015] In some embodiments, the heat exchange core includes a first surface and a second surface disposed opposite each other in a third direction, wherein a plurality of fins are protruding from the first surface and / or the second surface in an array.

[0016] In some embodiments, a plurality of fins are arranged in an array on the first surface and the second surface, and the fins on the first surface and the fins on the second surface are arranged symmetrically.

[0017] In some embodiments, a plurality of fins are arranged in an array on the first surface and the second surface, and the fins on the first surface and the fins on the second surface are staggered along the third direction.

[0018] In some embodiments, the cross-section of each fin is V-shaped.

[0019] A refrigerator, comprising the aforementioned evaporator assembly.

[0020] The evaporator assembly and refrigerator provided in this application embodiment have multiple second channels interspersed among multiple first channels, and the second channels are arranged in the manifold. By setting heating wires in the second channels, the heater can quickly heat the manifold and the heat exchange core, thereby achieving efficient defrosting of the evaporator. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0023] Figure 1 This is a schematic diagram of the structure of the evaporator assembly provided in an embodiment of this application.

[0024] Figure 2This is a structural schematic diagram of the evaporator assembly provided in an embodiment of this application from another perspective.

[0025] Figure 3 for Figure 2 The evaporator assembly shown is a cross-sectional view along the AA direction.

[0026] Figure 4 for Figure 1 The exploded view of the evaporator assembly is shown.

[0027] Figure 5 This is a schematic diagram of the manifold structure provided in an embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Refrigerator;

[0031] 100. Evaporator assembly;

[0032] 110. Manifold; 120. Heat exchanger core; 130. Heater;

[0033] 111. First sub-tube; 112. Second sub-tube; 113. Perforation; 114. Opening; 121. First channel; 122. Second channel; 123. First surface; 124. Second surface; 125. Fin; 131. Heating wire;

[0034] 1111, Imports; 1121, Exports;

[0035] H1, First direction; H2, Second direction; H3, Third direction. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, integral connections, or detachable connections; they can be mechanical connections or electrical connections, or internal connections between two components; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0039] This application provides an evaporator assembly; for example, please refer to [link to example]. Figures 1-4 , Figure 1 This is a schematic diagram of the structure of the evaporator assembly provided in an embodiment of this application. Figure 2 This is a schematic diagram of the evaporator assembly provided in an embodiment of this application from another perspective. Figure 3 for Figure 2 The evaporator assembly shown is a cross-sectional view along the AA direction. Figure 4 for Figure 1 The exploded view of the evaporator assembly shown. The evaporator assembly 100 includes a manifold 110, a heat exchange core 120, and a heater 130.

[0040] The heat exchange core 120 has a plurality of first channels 121 and a plurality of second channels 122 extending along a first direction H1, and the plurality of first channels 121 and the plurality of second channels 122 are arranged sequentially at intervals along a second direction H2; both ends of each first channel 121 are connected to the interior of the manifold 110 for refrigerant flow; at least one second channel 122 passes through the manifold 110 and its end extends out of the manifold 110; the heater 130 includes a plurality of heating wires 131, and at least one heating wire 131 is provided in each second channel 122.

[0041] It should be noted that the manifold 110 has an internal cavity structure for refrigerant flow, used to distribute and collect the refrigerant. When the refrigerant flows through the first channel 121, it exchanges heat with the fluid outside the heat exchange core 120 to cool the external fluid, thus achieving the heat exchange function of the heat exchange core 120. The manifold 110 has an inlet 1111 and an outlet 1121, with both ends of each first channel 121 connected to the manifold 110. When the refrigerant enters the manifold 110 through the inlet 1111, it is distributed to each first channel 121. After heat exchange and evaporation, the refrigerant is collected again through the manifold 110 and output through the outlet 1121. The manifold 110 and the heat exchange core 120 can be made of materials with good thermal conductivity, such as copper, aluminum, stainless steel, or titanium. The second channel 122 extends outside the manifold 110 so that the heating wire 131 can be inserted into the second channel 122 from the end of the second channel 122.

[0042] Optionally, the manifold 110 includes a first sub-pipe 111 and a second sub-pipe 112. Both ends of each first channel 121 are connected to the first sub-pipe 111 and the second sub-pipe 112, respectively. One end of the first sub-pipe 111 is closed, and the other end has an inlet 1111 for introducing refrigerant into the first sub-pipe 111. One end of the second sub-pipe 112 is closed, and the other end has an outlet 1121 for discharging refrigerant from the second sub-pipe 112. In practical applications, the refrigerant flows into the first sub-pipe 111 through the inlet 1111, and is then distributed through the first sub-pipe 111 to each of the first channels 121. It is then collected through the second manifold 110 and discharged through the outlet 1121.

[0043] Optionally, the first direction H1 and the second direction H2 are perpendicular to each other.

[0044] Because the manifold 110 and heat exchange core 120 require heat exchange for cooling, frost will gradually form on their outer surfaces. When the heater 130 is energized, the heating wire 131 will heat up. The heating wire 131 is located inside the manifold 110 and heat exchange core 120. Because the heating wire 131 is very close to the manifold, the heat it emits will be quickly transferred to the surfaces of the manifold 110 and heat exchange core 120, melting the frost on their surfaces.

[0045] The arrangement of multiple second channels 122 within multiple first channels 121 can be determined based on actual test results. For example, refrigeration tests can be conducted using an evaporator. Multiple tests revealed that, in the second direction H2, the frost layer on the central surface of the heat exchange core 120 is thicker than that on the sides. This indicates that during defrosting of the heat exchange core 120, more heat needs to be concentrated in the central region to achieve uniform defrosting. Therefore, in the design, more second channels 122 can be arranged between the first channels 121 corresponding to the central part of the heat exchange core 120. For example, in the middle part of the heat exchange core 120, at least one second channel 122 can be arranged between every two adjacent first channels 121; while on the sides of the heat exchange core 120, a second channel 122 can be arranged every two first channels 121. This improves the uniformity of defrosting of the evaporator assembly 100 and increases defrosting efficiency.

[0046] In addition, the number of heating wires 131 provided in each second channel 122 can also be determined by conducting a refrigeration test on the evaporator to obtain the actual frosting situation and based on the actual test results. For details, please refer to the above.

[0047] The evaporator assembly 100 provided in this application embodiment has multiple second channels 122 interspersed in multiple first channels 121, and the second channels 122 are connected to the manifold 110. By setting heating wires 131 in the second channels 122, the heater 130 can quickly heat the manifold 110 and the heat exchange core 120 to achieve efficient defrosting of the evaporator.

[0048] Optionally, a second channel 122 is provided between every two adjacent first channels 121. This ensures that when the heater 130 is turned on, all parts of the heat exchange core 120 are heated quickly, improving the uniformity and efficiency of defrosting. Optionally, a heating wire 131 is provided in each second channel 122.

[0049] Optionally, multiple second channels 122 are all disposed inside the manifold 110 and extend out of the manifold 110. In this way, the heating area of ​​the manifold 110 can be increased, thereby improving the defrosting efficiency of the heater 130 on the manifold 110.

[0050] The length and height of the heat exchange core 120 can be designed according to actual cooling requirements. In addition, the heat exchange core 120 can be configured as follows: Figure 1-2 The plate-like structure shown can also be configured as a multi-layered structure with bent connections.

[0051] In some embodiments, please refer to Figure 5 , Figure 5This is a schematic diagram of the manifold structure provided in an embodiment of this application. Along the second direction H2, a plurality of perforations 113 are sequentially formed on the manifold 110. Each perforation 113 traverses the manifold 110, and each second channel 122 passes through a corresponding perforation 113, with the end of the second channel 122 extending outside the perforation 113. The heat exchange core 120 forming the second channel 122 is sealed to the inner wall of the manifold 110 forming the perforation 113. Thus, when the refrigerant flows through the internal cavity of the manifold 110, it will not leak out through the perforation 113 to the outside of the manifold 110, avoiding refrigerant leakage. Furthermore, the heat exchange core 120 forming the second channel 122 is spaced from the inner wall of the manifold 110 forming the internal cavity, creating a flow channel for refrigerant circulation between them. In this way, the refrigerant can flow into each of the first channels 121 through the flow passage, thereby achieving the diversion function of the manifold 110.

[0052] Optionally, along the second direction H2, a plurality of openings 114 are sequentially formed on the circumferential sidewall of the manifold 110, and the first channel 121 communicates with the interior of the manifold 110 through the openings 114. It is understood that the heat exchange core 120, with its tube forming the first channel 121, is sealed to the inner wall of the manifold 110, which forms the openings 114, to prevent refrigerant leakage. The heat exchange core 120 and the manifold 110 can be integrally formed, welded, or connected by other means. The extending direction of the manifold 110 is, for example, the same as the second direction H2. The perforations 113 and the openings 114 can be spaced apart or connected.

[0053] In some embodiments, such as Figure 2 As shown, the heat exchange core 120 includes a first surface 123 and a second surface 124 disposed opposite to each other in the third direction H3. A plurality of fins 125 are protruding from the first surface 123 and / or the second surface 124 and distributed in an array. Optionally, the plurality of fins 125 are distributed in an array on the first surface 123 and the second surface 124, and the fins 125 on the first surface 123 and the second surface 124 are symmetrically arranged. Alternatively, the plurality of fins 125 are distributed in an array on the first surface 123 and the second surface 124, and the fins 125 on the first surface 123 and the second surface 124 are staggered along the third direction H3. In this way, by increasing the heat exchange surface area of ​​the heat exchange core 120 through the fins 125, the heat exchange efficiency of the heat exchange core 120 can be greatly improved. Optionally, the cross-section of each fin 125 is V-shaped. This can further improve the heat exchange efficiency of the heat exchange core 120.

[0054] Preferably, the fins 125 on the heat exchange core 120 are integrally formed by a shaving process. This allows the fins 125 to be thinner and longer, resulting in better heat exchange performance.

[0055] The evaporator assembly 100 provided in this application embodiment has multiple second channels 122 interspersed in multiple first channels 121, and the second channels 122 are connected to the manifold 110. By setting heating wires 131 in the second channels 122, the heater 130 can quickly heat the manifold 110 and the heat exchange core 120 to achieve efficient defrosting of the evaporator.

[0056] This application also provides a refrigerator, for example, please refer to [link to example]. Figure 6 , Figure 6 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this application. The refrigerator 10 can be as follows: Figure 6 The French-style refrigerator shown can also be a cross-door refrigerator, a side-by-side refrigerator, or other types of refrigerators. Refrigerator 10 is equipped with the evaporator assembly 100 of any of the above embodiments.

[0057] The refrigerator 10 provided in this application embodiment is configured with an evaporator assembly 100 having a manifold 110 and multiple first channels 121. Multiple second channels 122 are interspersed in the multiple first channels 121 and are arranged in the manifold 110. By setting a heating wire 131 in the second channel 122, the heater 130 can quickly heat the manifold 110 and the heat exchange core 120 to achieve efficient defrosting of the evaporator.

[0058] The evaporator assembly and refrigerator provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An evaporator assembly, characterized in that, include: manifold; The heat exchange core has a plurality of first channels and a plurality of second channels extending along a first direction, and the plurality of first channels and the plurality of second channels are arranged sequentially at intervals along a second direction; both ends of each first channel are connected to the interior of the manifold for refrigerant flow; at least one second channel passes through the manifold and its end extends out of the manifold. The heater includes multiple heating wires, with at least one heating wire disposed in each of the second channels.

2. The evaporator assembly according to claim 1, characterized in that, A second channel is provided between every two adjacent first channels.

3. The evaporator assembly according to claim 1, characterized in that, Along the second direction, a plurality of perforations are sequentially opened on the manifold, the perforations passing through the manifold, each second channel passing through the corresponding perforation, and the end of the second channel extending out of the perforation.

4. The evaporator assembly according to claim 1, characterized in that, Along the second direction, a plurality of openings are sequentially formed on the circumferential sidewall of the manifold, and the first channel communicates with the interior of the manifold through the openings.

5. The evaporator assembly according to any one of claims 1-4, characterized in that, The manifold includes a first sub-pipe and a second sub-pipe, and both ends of each first channel are connected to the first sub-pipe and the second sub-pipe, respectively. One end of the first sub-tube is closed, and the other end has an inlet for introducing refrigerant into the first sub-tube; one end of the second sub-tube is closed, and the other end has an outlet for discharging refrigerant from the second sub-tube.

6. The evaporator assembly according to any one of claims 1-4, characterized in that, The heat exchange core includes a first surface and a second surface arranged opposite each other in a third direction, and a plurality of fins are protruding from the first surface and / or the second surface in an array.

7. The evaporator assembly according to claim 6, characterized in that, The first surface and the second surface are provided with a plurality of fins arranged in an array, and the fins on the first surface and the fins on the second surface are arranged symmetrically.

8. The evaporator assembly according to claim 6, characterized in that, The first surface and the second surface are provided with a plurality of fins arranged in an array, and the fins on the first surface and the fins on the second surface are staggered along the third direction.

9. The evaporator assembly according to claim 6, characterized in that, Each of the aforementioned fins has a V-shaped cross-section.

10. A refrigerator, characterized in that, Includes the evaporator assembly as described in any one of claims 1-9.

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